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Tanya [424]
3 years ago
6

At the market 5 light bulbs cost $9. How much do 7 cost

Mathematics
1 answer:
Naddik [55]3 years ago
5 0

Answer:

$12.6

Step-by-step explanation:

9/5=x/7

1.8=x/7

*7    *7

12.6=x

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Tennessee Whisky contains 40% alcohol; how many ml of whiskey can be produced with 80ml of alcohol?
anygoal [31]

well we know that we have 80mL and we also know that those 80mL will represent the "solute" or the 40% of the Tennessee whiskey total which we can say is 100%, so if 80 is the 40%, how much will it be for the 100% in mL?

\begin{array}{ccll}mL&\%\\\cline{1-2}80&40\\x&100\end{array}\implies \cfrac{80}{x}=\cfrac{40}{100}\implies \cfrac{80}{x}=\cfrac{2}{5}\implies 400=2x\\\\\\ \cfrac{400}{2}=x\implies \underset{mL}{200}=x

5 0
3 years ago
A 24ft flagpole has a shadow of 9ft. A soldier standing next to the flagpole has a shadow of 2.25 feet. How tall is the soldier?
natima [27]

Answer:

6 feet

Step-by-step explanation:

Let's form a proportion;

24                    x

____    =      _____ ,

 9                   2.25

24(2.25) = 9x,

54 = 9x,

x = height of soldier = 6 feet

4 0
4 years ago
Read 2 more answers
Bill has enough money to buy no more than 1/2 pound of cheese. how much cheese could he buy?
quester [9]
Let
 x: amount of pounds of cheese that Bill can buy.
 We can write the following inequation for this problem
 x <= 1/2
 Therefore, Bill could buy up to 1/2 pound of cheese.
 answer
 1/2 pound of cheese (maximum)
7 0
3 years ago
Would $105.00 be correct? With the equation of Y=x(15)?
Vilka [71]

Answer:

$15.00h=N

$15.00(7)=N

$105.00=N

N=$105.00

So yes you are correct

Hope that helped

4 0
3 years ago
Which triangles could you use the HL Theorem to prove that Δ 1 = Δ 2?
UNO [17]
Number 3. I think so.
7 0
3 years ago
Read 2 more answers
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